A clamping and positioning component and a workpiece grinding device for a machining center

Abstract

The utility model relates to the technical field of clamping equipment, specifically to a clamping and positioning component and a workpiece grinding equipment for a machining center, comprising: a table plate, a front fixing plate is fixed on the surface of the table plate; a No. 1 rotating shaft is fixed on the surface of the table plate, an adjusting gear is arranged on the outside of the No. 1 rotating shaft, an arc rod is fixed on the side of the adjusting gear, and a side fixing plate is hinged on the end of the arc rod; and a rear fixing plate is arranged on the surface of the table plate, and an adjusting rod is fixed on the surface of the rear fixing plate; the beneficial effect is: two groups of side fixing plates are respectively arranged on both sides of the workpiece, so the two groups of side fixing plates will approach the workpiece at the same time and clamp and fix the workpiece from the side, and since the workpiece is clamped and fixed in four directions at the same time, the workpiece is not prone to dislocation during the grinding process, thereby improving the machining accuracy of the workpiece.

Description

Technical Field

[0001] The utility model relates to the field of clamping equipment, in particular to a clamping positioning component and a workpiece grinding device for a machining center. Background Art

[0002] In the process of machining mechanical workpieces, the workpieces need to be clamped and positioned before grinding. Existing clamping devices are generally two-way clamping and fixing. In the multi-angle grinding process, the clamping may be loose, causing the workpiece to be misaligned during the grinding process, resulting in reduced machining accuracy of the workpiece and even damage to the workpiece. Utility Model Content

[0003] The purpose of the utility model is to provide a clamping and positioning component and a workpiece grinding device for a machining center to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping and positioning assembly, the clamping and positioning assembly comprising:

[0005] A table top, a front fixing plate is fixed on the surface of the table top;

[0006] A first rotating shaft is fixed on the surface of the table, an adjusting gear is arranged outside the first rotating shaft, an arc-shaped rod is fixed on the side of the adjusting gear, and a side fixing plate is hinged at the end of the arc-shaped rod; and

[0007] The rear fixing plate is arranged on the surface of the table plate, and an adjusting rod is fixed on the surface of the rear fixing plate.

[0008] Preferably, there are two groups of side fixing plates, which are respectively arranged on both sides of the rear fixing plate, and hinge shafts are fixed on the surfaces of the two groups of side fixing plates.

[0009] Preferably, there are two groups of adjusting gears, which are respectively arranged on both sides of the transmission rod, and the two groups of adjusting gears can rotate on the surface of the first rotating shaft.

[0010] Preferably, a transmission gear and a second rotating shaft are provided on the surface of the table plate, the transmission gear can rotate on the surface of the second rotating shaft, and there are two sets of transmission gears and two sets of the second rotating shaft.

[0011] Preferably, a transmission rod is provided on the surface of the platform, an adjustment groove is provided at the end of the transmission rod, and the transmission rod is connected to the transmission gear through teeth.

[0012] Preferably, one end of the adjustment rod is fixed to the surface of the rear fixing plate, and the other end can be embedded in the adjustment groove through the adjustment tooth.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model proposes that the workpiece to be polished is placed on the surface of the table plate and is located in a position between the front fixing plate and the rear fixing plate, and the length of the adjusting rod embedded in the adjusting groove is adjusted according to the specific size of the workpiece, so that when the side fixing plate clamps the workpiece, the rear fixing plate can also just press the workpiece against the front fixing plate. When clamping the workpiece, the hydraulic cylinder is opened, the hydraulic cylinder drives the hydraulic rod to move forward, the hydraulic rod pushes the transmission rod, the transmission rod pushes the adjusting rod and the rear fixing plate, and the rear fixing plate pushes the workpiece until the front end of the workpiece presses against the front fixing plate. When the transmission rod moves forward, the transmission gear is driven to rotate through the teeth on the side, and the transmission gear drives the adjusting gear to rotate. The adjusting gear rotates to rotate the end of the arc rod, and the end of the arc rod moves the side fixing plate. Since the two groups of side fixing plates are respectively arranged on both sides of the workpiece, the two groups of side fixing plates will approach the workpiece at the same time and clamp the workpiece from the side. Since the workpiece is clamped and fixed in four directions at the same time, the workpiece is not easy to be misaligned during the polishing process, thereby improving the processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0017] In the figure: table plate 1, front fixed plate 2, hinge shaft 3, arc rod 4, No. 1 rotating shaft 5, adjusting gear 6, transmission gear 7, No. 2 rotating shaft 8, adjusting slot 9, hydraulic cylinder 10, side fixing plate 11, rear fixing plate 12, transmission rod 13, adjusting rod 14, hydraulic rod 15. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1

[0020] See also Figure 1-Figure 2The utility model provides a technical solution: a clamping and positioning component, which includes: a table 1, a front fixing plate 2 is fixed on the surface of the table 1; a No. 1 rotating shaft 5 is fixed on the surface of the table 1, an adjusting gear 6 is arranged on the outside of the No. 1 rotating shaft 5, an arc rod 4 is fixed on the side of the adjusting gear 6, and a side fixing plate 11 is hinged at the end of the arc rod 4; and a rear fixing plate 12 is arranged on the surface of the table 1, and an adjusting rod 14 is fixed on the surface of the rear fixing plate 12; because the arc rod 4 and the side fixing plate 11 are hingedly connected, the side fixing plate 11 can rotate within a certain range, so that the clamping assembly can clamp irregular workpieces.

[0021] Embodiment 2

[0022] On the basis of Example 1, there are two groups of side fixing plates 11, and the two groups of side fixing plates 11 are respectively arranged on both sides of the rear fixing plate 12, and the surfaces of the two groups of side fixing plates 11 are fixed with hinge shafts 3; there are two groups of adjusting gears 6, and the two groups of adjusting gears 6 are respectively arranged on both sides of the transmission rod 13, and the two groups of adjusting gears 6 can rotate on the surface of the No. 1 rotating shaft 5; the surface of the table plate 1 is provided with a transmission gear 7 and a No. 2 rotating shaft 8, and the transmission gear 7 can rotate on the surface of the No. 2 rotating shaft 8, and there are two groups of transmission gears 7 and the No. 2 rotating shaft 8 respectively; the surface of the table plate 1 is provided with a transmission rod 13, and the end of the transmission rod 13 is provided with an adjustment groove 9, and the transmission rod 13 is connected to the transmission gear 7 through teeth; one end of the adjusting rod 14 is fixed to the surface of the rear fixing plate 12, and the other end can be embedded in the adjustment groove 9 through the adjustment teeth.

[0023] In actual use, the workpiece to be polished is placed on the surface of the table 1 and is located between the front fixing plate 2 and the rear fixing plate 12. The length of the adjusting rod 14 embedded in the adjusting groove 9 is adjusted according to the specific size of the workpiece, so that when the side fixing plate 11 clamps the workpiece, the rear fixing plate 12 can also just press the workpiece against the front fixing plate 2. When clamping the workpiece, the hydraulic cylinder 10 is turned on, and the hydraulic cylinder 10 drives the hydraulic rod 15 to move forward. The hydraulic rod 15 pushes the transmission rod 13, and the transmission rod 13 pushes the adjusting rod 14 and the rear fixing plate 12. The rear fixing plate 12 pushes the workpiece until the front end of the workpiece presses against the front fixing plate 2. When the transmission rod 13 moves forward, the transmission gear 7 is driven to rotate through the side teeth, and the transmission gear 7 drives the adjustment gear 6 Rotate, adjust the gear 6 to rotate to rotate the end of the arc rod 4, and the end of the arc rod 4 moves the side fixing plate 11. Since the two groups of side fixing plates 11 are respectively arranged on both sides of the workpiece, the two groups of side fixing plates 11 will approach the workpiece at the same time and clamp the workpiece from the side. Since the workpiece is clamped and fixed in four directions at the same time, the workpiece is not prone to misalignment during the grinding process, thereby improving the machining accuracy of the workpiece; and only the hydraulic cylinder 10 needs to be controlled to clamp and release the workpiece, and the operation is convenient and fast; since the arc rod 4 and the side fixing plate 11 are hingedly connected, the side fixing plate 11 can rotate within a certain range, so that the clamping assembly can clamp irregular workpieces, expanding the types and range of workpieces that can be clamped.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and positioning assembly, characterized in that: The clamping and positioning assembly comprises: A table top (1), a front fixing plate (2) being fixed on the surface of the table top (1); A first rotating shaft (5) is fixed on the surface of the table (1), an adjusting gear (6) is arranged outside the first rotating shaft (5), an arc-shaped rod (4) is fixed on the side of the adjusting gear (6), and a side fixing plate (11) is hinged at the end of the arc-shaped rod (4); and The rear fixing plate (12) is arranged on the surface of the platform (1), and an adjusting rod (14) is fixed on the surface of the rear fixing plate (12).

2. A clamping and positioning assembly according to claim 1, characterized in that: There are two groups of side fixing plates (11), which are respectively arranged on both sides of the rear fixing plate (12), and hinge shafts (3) are fixed on the surfaces of the two groups of side fixing plates (11).

3. A clamping and positioning assembly according to claim 1, characterized in that: There are two groups of adjusting gears (6), which are respectively arranged on both sides of the transmission rod (13), and the two groups of adjusting gears (6) can rotate on the surface of the first rotating shaft (5).

4. A clamping and positioning assembly according to claim 1, characterized in that: The surface of the platform (1) is provided with a transmission gear (7) and a second rotating shaft (8), the transmission gear (7) can rotate on the surface of the second rotating shaft (8), and there are two sets of the transmission gear (7) and the second rotating shaft (8).

5. The clamping and positioning assembly according to claim 1, characterized in that: A transmission rod (13) is arranged on the surface of the platform (1), an adjustment groove (9) is arranged at the end of the transmission rod (13), and the transmission rod (13) is connected to the transmission gear (7) through teeth.

6. A clamping and positioning assembly according to claim 1, characterized in that: One end of the adjustment rod (14) is fixed to the surface of the rear fixing plate (12), and the other end can be embedded in the adjustment groove (9) through the adjustment teeth.

7. A workpiece grinding device for a machining center, characterized in that: The invention comprises the clamping and positioning assembly as described in any one of claims 1 to 6.

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