Base support of three-coordinate measuring instrument and three-coordinate measuring instrument

Abstract

The utility model provides a base support of a three-coordinate measuring instrument and the three-coordinate measuring instrument, and the base support comprises a support body which is in a flat plate shape; the number of the measuring clamps is at least two, the measuring clamps are arranged on the support body at intervals, and the measuring clamps are used for clamping measured workpieces of different dimensions; each group of measuring clamps comprises a reference supporting seat, a plurality of measuring clamps and a plurality of measuring clamps, wherein the reference supporting seat is fixedly arranged on the bracket body; and the reference point pressing clamp is fixedly arranged on the bracket body and is combined with the reference supporting seat to form a clamping part for clamping the measured workpiece. According to the utility model, the condition that the base bracket needs to be repeatedly replaced when a plurality of measured workpieces are measured is reduced, and the measurement efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of measuring devices, and particularly to a base bracket and a coordinate measuring machine of a coordinate measuring machine. Background Art

[0002] In the prior art, when it is necessary to measure workpieces to be measured with various size specifications, each time a workpiece to be measured with a certain size specification is measured, the corresponding base bracket needs to be replaced to perform reference positioning on the workpiece to be measured, resulting in low measurement efficiency. Summary of the Utility Model

[0003] The embodiments of the present utility model provide a base bracket and a coordinate measuring machine of a coordinate measuring machine to solve the problem in the prior art that when it is necessary to measure workpieces to be measured with various size specifications, each time a workpiece to be measured with a certain size specification is measured, the corresponding base bracket needs to be replaced to perform reference positioning on the workpiece to be measured, resulting in low measurement efficiency.

[0004] To solve the above technical problems, the present utility model is implemented as follows:

[0005] In a first aspect, the embodiments of the present utility model provide a base bracket of a coordinate measuring machine, including:

[0006] A bracket body, which is in a flat plate shape;

[0007] Measurement jigs, having at least two groups, and are arranged on the bracket body at intervals, and each group of the measurement jigs is used for clamping workpieces to be measured with different size specifications;

[0008] Each group of the measurement jigs includes:

[0009] A reference support seat, which is detachably arranged on the bracket body;

[0010] A reference point clamp, which is detachably arranged on the bracket body and forms a clamping part for clamping the workpiece to be measured in combination with the reference support seat.

[0011] Optionally, each group of the measurement jigs has at least two of the reference point clamps.

[0012] Optionally, the distance values of any two adjacent clamping parts relative to the bracket body are not equal.

[0013] Optionally, the reference point clamp includes:

[0014] A clamp seat, which is detachably arranged on the bracket body;

[0015] The clamping pliers body has connection ends and clamping pliers ends respectively arranged at both ends in its own length direction, and the connection ends are rotationally connected to the clamping pliers seat around the first axis;

[0016] The pressing block assembly is fixedly connected to the clamping pliers end;

[0017] The holding member, one end in the length direction of the holding member is rotationally connected to the clamping pliers body around the second axis;

[0018] The connecting rod, one end in the length direction of the connecting rod is rotationally connected to the holding member around the third axis, and the other end is rotationally connected to the clamping pliers seat around the fourth axis;

[0019] Wherein, the first axis, the second axis, the third axis, and the fourth axis of the same reference point clamping pliers are parallel to each other.

[0020] Optionally, the pressing block assembly includes:

[0021] The connecting piece, one end in the length direction of the connecting piece is fixedly connected to the clamping pliers end, and the other end has a first through hole penetrating the connecting piece in the up and down direction, and the inner wall of the first through hole has internal threads;

[0022] The screw rod penetrates through the first through hole, and the external threads on the circumferential side wall of the screw rod are in mating connection with the internal threads;

[0023] The pressing block is arranged at the end of the screw rod extending below the connecting piece.

[0024] Optionally, the material of the pressing block is rubber.

[0025] Optionally, the pressing block is in a conical barrel shape.

[0026] Optionally, the connecting piece is fixedly connected to the clamping pliers end through a fastener.

[0027] In a second aspect, an embodiment of the present invention provides a coordinate measuring machine, including the base bracket of the coordinate measuring machine as described in any one of the first aspects.

[0028] Optionally, the coordinate measuring machine is a bridge-type coordinate measuring machine, including:

[0029] The base, in a flat plate shape;

[0030] The bridge-type measuring arm arranged on the base, the bridge-type measuring arm can move relative to the base, and the base bracket is arranged on the side plate surface of the base opposite to the bridge-type measuring arm.

[0031] In the embodiment of the present utility model, the support body is in a flat plate shape; there are at least two groups of measuring jigs, which are arranged at intervals on the support body, and each group of the measuring jigs is used to clamp the workpieces to be measured with different size specifications; each group of the measuring jigs includes: a reference support base, which is fixedly arranged on the support body; a reference point clamp, which is fixedly arranged on the support body and forms a clamping part for clamping the workpiece to be measured with the reference support base, and can install the measuring jigs corresponding to workpieces to be measured with different size specifications on a coordinate measuring instrument during one loading process, reducing the situation of repeatedly replacing the base support when measuring multiple workpieces to be measured and improving the measuring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0033] Figure 1 is a schematic structural diagram of the base support of the coordinate measuring instrument in the embodiment of the present utility model;

[0034] Figure 2 corresponding to Figure 1 is a partial enlarged schematic diagram of area A in

[0035] Wherein:

[0036] 1, support body; 2, measuring jig; 21, reference support base; 22, reference point clamp; 221, clamp seat; 222, clamp body; 223, pressing block assembly; 224, holding member; 225, connecting rod; 2231, connecting member; 2231a, first through hole; 2232, screw; 2233, pressing block;

[0037] a1, first axis; a2, second axis; a3, third axis; a4, fourth axis. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0039] In the terms of this application, terms such as "first" and "second" are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same category, without limiting the number of objects. For example, the first object can be one or multiple. In addition, "or" in this application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0040] In the technical solutions of this disclosure, similar terms such as "connected", "coupled", or "linked" are not limited to physical or mechanical connections, but may include electrical connections.

[0041] In addition, the technical features involved in different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0042] An embodiment of the utility model provides a base bracket for a three-coordinate measuring instrument. Refer to Figure 1 as shown, including:

[0043] A bracket body 1, in a flat plate shape;

[0044] Measuring jigs 2, having at least two groups, and arranged at intervals on the bracket body 1. Each group of measuring jigs 2 is used to clamp workpieces to be measured with different size specifications;

[0045] Each group of measuring jigs 2 includes:

[0046] A reference support seat 21, fixedly arranged on the bracket body 1;

[0047] A reference point clamp 22, fixedly arranged on the bracket body 1, and combined with the reference support seat 21 to form a clamping portion for clamping the workpiece to be measured.

[0048] In actual application, when measurement is required, place the base bracket on the three-coordinate working platform. According to the marked position on the three-coordinate working platform, confirm that the base bracket is placed in place. Open the reference point clamp of the corresponding workpiece to be measured, place the workpiece to be measured on the measuring bracket according to the positioning requirements, and after pressing the reference point clamp, perform the measurement of the corresponding part according to the program preset by the three-coordinate;

[0049] When it is necessary to switch the workpiece to be measured, remove the current workpiece to be measured from the base bracket, open the reference point clamp corresponding to the new workpiece to be measured, place the part and press the clamp to measure, without replacing the base bracket.

[0050] In the embodiment of the present utility model, through the bracket body 1, which is in a flat plate shape; the measuring fixture 2, there are at least two groups, and they are arranged at intervals on the bracket body 1, and each group of measuring fixtures 2 is used to clamp the workpieces to be measured with different size specifications; each group of measuring fixtures 2 includes: a reference support base 21, fixedly arranged on the bracket body 1; a reference point clamp 22, fixedly arranged on the bracket body 1, and combined with the reference support base 21 to form a clamping part for clamping the workpiece to be measured, and the measuring fixture 2 corresponding to workpieces to be measured with different size specifications can be installed on the coordinate measuring instrument during one loading process, reducing the situation of repeatedly replacing the base bracket when measuring multiple workpieces to be measured and improving the measurement efficiency.

[0051] In some embodiments of the present utility model, optionally, refer to Figure 1 As shown, each group of measuring fixtures 2 has at least two reference point clamps 22.

[0052] In the embodiment of the present utility model, each group of measuring fixtures 2 has at least two reference point clamps 22, which can ensure the stable clamping of the workpiece to be measured. Especially for large-size workpieces, at least two reference point clamps 22 can ensure the relative stillness of the large-size workpiece during the test and ensure the accuracy of the measurement result.

[0053] In some embodiments of the present utility model, optionally, the distance values of any two adjacent clamping parts relative to the bracket body 1 are not equal.

[0054] In the embodiment of the present utility model, by using the spatial drop in the height direction, the space utilization rate is increased. And it is also beneficial to avoid the interference between the workpieces to be measured when clamping them, improving the measurement efficiency.

[0055] In some embodiments of the present utility model, optionally, refer to Figure 2 As shown, the reference point clamp 22 includes:

[0056] A clamp seat 221, detachably arranged on the bracket body;

[0057] A clamp body 222, having a connection end and a clamp end respectively arranged at both ends of its own length direction, and the connection end is rotatably connected to the clamp seat 221 around the first axis a1;

[0058] A pressing block assembly 223, fixedly connected to the clamp end;

[0059] A holding member 224, one end of the holding member 224 in its own length direction is rotatably connected to the clamp body 222 around the second axis a2;

[0060] The connecting rod 225, one end of the connecting rod 225 in its own length direction is rotatably connected to the holding member 224 around the third axis a3, and the other end is rotatably connected to the clamp seat 221 around the fourth axis a4;

[0061] Among them, the first axis a1, the second axis a2, the third axis a3, and the fourth axis a4 of the clamp with the same reference point are parallel to each other.

[0062] In the embodiment of the present invention, due to the fact that the first axis a1, the second axis a2, the third axis a3, and the fourth axis a4 of the clamp with the same reference point are parallel to each other, the clamp body 222, the pressing block assembly 223, the holding member 224, and the connecting rod 225 are combined to form a four-bar linkage mechanism. When it is necessary to clamp the workpiece to be measured, the user can operate the holding member 224 to rotate downward around the second axis a2, driving the connecting rod 225 to rotate around the fourth axis a4 in the direction close to the workpiece to be measured. Thus, the connecting rod 225 provides a thrust for the holding member 224 to move in the direction close to the workpiece to be measured. The holding member 224 drives the clamp body 222 to rotate downward around the first axis a1, clamping the workpiece to be measured in the clamping portion formed by the pressing block assembly 223 and the reference support seat 21, realizing the clamping of the workpiece to be measured. The structure of the embodiment of the present invention is simple and has high reliability, and can clamp the workpiece to be measured conveniently and quickly.

[0063] In some embodiments of the present invention, optionally, as shown in Figure 2 the pressing block assembly 223 includes:

[0064] A connecting member 2231, one end of the connecting member 2231 in its own length direction is fixedly connected to the clamp end, and the other end has a first through hole 2231a penetrating the connecting member 2231 in the up and down direction. The inner wall of the first through hole 2231a has internal threads;

[0065] A screw rod 2232, the screw rod 2232 penetrates through the first through hole 2231a, and the external threads on the circumferential side wall of the screw rod 2232 are in threaded connection with the internal threads;

[0066] A pressing block 2233, arranged at the end of the screw rod 2232 extending below the connecting member 2231.

[0067] In the embodiment of the present invention, the user can adjust the distance between the pressing block 2233 and the connecting member 2231 through the screw rod 2232, so that the pressing block assembly 223 adapts to workpieces to be measured with different specifications, improving the applicability of the base bracket of the embodiment of the present invention.

[0068] In some embodiments of the present utility model, optionally, the material of the pressing block 2233 is rubber. Through the above arrangement, it can effectively prevent the situation of bump damage to the workpiece under test when the pressing block 2233 abuts against the workpiece under test. In addition, by utilizing the elasticity of rubber, the pressing block 2233 can also play a vibration damping role when abutting against the workpiece under test, eliminating the interference of the vibration of the workpiece under test during the measurement process to the measurement result, and ensuring that the measurement result has high accuracy.

[0069] In some embodiments of the present utility model, optionally, refer to Figure 2 As shown, the pressing block 2233 is in a conical barrel shape. The above arrangement is beneficial to ensuring that the workpiece under test is stably clamped during the measurement process, eliminating the interference of the vibration of the workpiece under test during the measurement process to the measurement result, and ensuring that the measurement result has high accuracy.

[0070] In some embodiments of the present utility model, optionally, the connecting member 2231 is fixedly connected to the end of the pressing pliers through a fastener.

[0071] The embodiment of the present utility model also provides a coordinate measuring machine, including the base bracket of the coordinate measuring machine in any one of the embodiments of the present utility model.

[0072] In some embodiments of the present utility model, optionally, the coordinate measuring machine is a bridge-type coordinate measuring machine, including:

[0073] A base, in a flat plate shape;

[0074] A bridge-type measuring arm arranged on the base, the bridge-type measuring arm can move relative to the base, and the base bracket is arranged on the side plate surface of the base opposite to the bridge-type measuring arm.

[0075] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims, and all belong to the protection scope of the present utility model.

Claims

1. A base bracket of a three-coordinate measuring instrument, characterized in that, Comprising: A bracket body, in a flat plate shape; Measuring jigs, having at least two groups, and being arranged at intervals on the bracket body, each group of the measuring jigs being used to clamp workpieces to be measured with different size specifications; Each group of the measuring jigs includes: A reference support base, detachably arranged on the bracket body; A reference point clamp, detachably arranged on the bracket body, and combined with the reference support base to form a clamping part for clamping the workpiece to be measured.

2. The base bracket of the coordinate measuring machine according to claim 1, characterized in that Each group of the measuring jigs has at least two of the reference point clamps.

3. The base bracket of the coordinate measuring machine according to claim 1, characterized in that The distance values of any two adjacent clamping parts relative to the bracket body are not equal.

4. The base bracket of the coordinate measuring machine according to claim 1, characterized in that, The reference point clamp includes: A clamp seat, detachably arranged on the bracket body; A clamp body, having a connecting end and a clamp end respectively arranged at both ends of its own length direction, the connecting end being rotatably connected to the clamp seat around a first axis; A pressing block assembly, fixedly connected to the clamp end; A holding member, one end of the holding member in its own length direction being rotatably connected to the clamp body around a second axis; A connecting rod, one end of the connecting rod in its own length direction being rotatably connected to the holding member around a third axis, and the other end being rotatably connected to the clamp seat around a fourth axis; Wherein, the first axis, the second axis, the third axis, and the fourth axis of the same reference point clamp are parallel to each other.

5. The base bracket of the coordinate measuring machine according to claim 4, characterized in that The pressing block assembly includes: A connecting member, one end of the connecting member in its own length direction being fixedly connected to the clamp end, and the other end having a first through hole penetrating through the connecting member in the up and down direction, the inner wall of the first through hole having internal threads; A screw rod, the screw rod penetrating through the first through hole, and the external threads on the circumferential side wall of the screw rod being in threaded connection with the internal threads; A pressing block, arranged at the end of the screw rod extending below the connecting member.

6. The base bracket of the coordinate measuring machine according to claim 5, characterized in that The material of the pressing block is rubber.

7. The base bracket of the coordinate measuring machine according to claim 5 or 6, characterized in that The pressing block is in a conical barrel shape.

8. The base bracket of the coordinate measuring machine according to claim 5, characterized in that The connecting member is fixedly connected to the clamp end through a fastener.

9. A three-coordinate measuring instrument, characterized in that, Including the base bracket of the coordinate measuring machine according to any one of claims 1 to 8.

10. The coordinate measuring machine according to claim 9, characterized in that, The coordinate measuring machine is a bridge-type coordinate measuring machine, including: A base, in a flat plate shape; A bridge-type measuring arm arranged on the base, the bridge-type measuring arm being able to move relative to the base, and the base bracket being arranged on the side plate surface of the base opposite to the bridge-type measuring arm.

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